How are exothermic and endothermic reactions measured in a lab?

Answers

Answer 1

Answer:

Exothermic and endothermic are measured by a calorimeter.

How to tell the difference between them. If change is positive, then thermal energy was released, and the process is exothermic. If the change is negative, then thermal energy was absorbed, and the process is endothermic.

それらの違いを見分ける方法。変化が正の場合、熱エネルギーが放出され、プロセスは発熱します。変化が負の場合、熱エネルギーが吸収され、プロセスは吸熱反応です。

Answer 2
Calomeitor I can’t spell lol

Related Questions

How do the properties of air influence weather?

Answers

Temperature refers to how warm or cold air is, and the density of the air is how many molecules are packed into a certain space of air. ... But, air pressure also affects temperature - the more those molecules bump into each other, the more heat they generate.
Rising Air creates low pressure while sinking air creates high pressure. WIth high pressure, sinking air suppresses weather development. High air pressure produces clear sky, dry and stable weather. In a low pressure zone, wind is circulated onwards and upwards rapidly. As a result, air rise and cools. Clouds and precipitate are formed

What is the cause of most waves and how can this change waves' characteristics?

Answers

There are three main factors that affect wave formation: wind velocity, fetch, and duration.

Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest.

PLEASE HELP! I think it's F but I'm not sure... Am I right???
The structural layers of the sun are shown in the cross-sectional diagram.


Which layer represents the chromosphere?

Select one:
a. C
b. D
c. E
d. F

Answers

Answer:

E

Explanation:

F seems more like a corona

Mate your answer is E

Refer to the attached image

Oceanic water particles mainly move in circles; is this movement greater on the ocean's surface or below the surface? Explain your reasoning.

Answers

I think that the oceanic water particles mainly move in circles greater in the oceans surface because of how big the waves can be and how wind and air impact the motion. The water particles move more on the surface because of the other factors that impact it such as people, wind, air, etc...

The colors of light that televisions primarily use to make a picture are ______________.

Red, Black, and Green
Red, Yellow, Blue
Red, Green, and Blue
Green, Blue, Purple

Answers

Answer:

Red, Green, and Blue

Explanation:

Each of the pixels on a computer monitor or TV screen is composed of phosphors surrounded by a black mask. The different colors we see are results from different combinations and intensities of these three primary colors (Red, Green, and Blue).

The colors mainly used in television are red green and blue

How does the digestive system interact with the following organ systems (circulatory, muscular and nervous system) to maintain homeostasis?

Answers

Answer:

The circulatory system breaks down food and gets / absorbs nutrients. The muscular system works to get nutrients to the rest of the body. The nervous system basically controls the digestive system and sends information to the brain.

I'm pretty sure I'm right, but please correct me if I'm wrong! :)

What is El Niño? What weather effects can El Niño cause?



What is La Niña? What weather effects can La Niña cause?

HELP RIGHT NOW!

Answers

El Niño and La Niña affect not only ocean temperatures, but also how much it rains on land. Depending on which cycle occurs (and when), this can mean either droughts or flooding. Typically, El Niño and its warm waters are associated with drought, while La Niña is linked to increased flooding
El niño is a very strong storm. El niño can cause lots of rain and even more than normally. La Niña is another storm but can cause a hurricane.

I need number two only

Answers

Answer:

d: ice is less dense than liquid water.

Explanation:

hope this helps! ( brainliest would be appreciated :)

~mina

D good luck with the rest of your work

Give me 2 animals to combine their inherited traits

Answers

Answer:

dogs and cats

Explanation:

hope this helps

i think cats and dogs

AYOO I NEED HELP plz

Answers

Answer:

1D

2C

3C

4C

5D

6D

7D

8D

9B

Explanation:

better give me points X﹏X

Answer:

1) D

2) C

3) D

4) C

5) D

6) D

7) D

8) D

9) B

Take these answers with a grain of salt.

Hello I need help its due today!

"Describe and explain how Mercury might be different if it had the same mass as Earth. *Consider the planet's composition"​

Answers

Answer:This also means that Mercury's surface gravity is 3.7 m/s2, which is the equivalent of 38% of Earth's gravity (0.38 g). This means that if you weighed 100 kg (220 lbs) on Earth, you would weigh 38 kg (84 lbs) on Mercury.

Explanation:

PLEASE HELP :) THANK YOU Geologic processes change Earth's surface on varying scales of space and time. They range from rapid to very slow; from large to microscopic.

How does the time scale of slow geologic processes affect human perception of landforms on Earth? Provide details to support your answer.

Answers

Answer:

Human change the surface by mining it, falting it for land, we remove tree,plants, soil,mud, to build space for buidlings, farms, and etc hopes this help

Explanation:

Does air have weight? Explain your answer.
PLEASE HURRY!

Answers

Answer:

Yes, it does.

Explanation:

Air has mass, and anything with mass has weight. We can tell it has mass, because we can feel it when the wind blows.

Answer: Yes

Explanation:

It has mass and mass carries weight not trying to copy btw!

how do you throw a pair of clipers

Answers

Answer:

YOU YEET IT!!!!

Explanation:

YEET

You would pick it up and throw dat mf

Describe the climate of a desert biome. (Temperature and precipitation)

Answers

Abiotic factors include the non living components of the environment.
For example- Temperature, humidity, and rainfall.
Desert biome is mainly considered as a part of drylands. It is characterised by extremely low humidity. Average rainfall in this biome is less than ten inches. This results in scarcity of water. It experiences extremely high temperature and is frequently windy.
Example of desert biome- Thar desert in Rajasthan.

How do yeast cells get the nutrients that keep them alive?

Answers

Answer:

vitamins, amino acids and fat acids

Explanation:

by streaming nicki minaj

A negative charge of -4.0 x 10 -6 C and a positive charge of 7.0 x 10 -5 C are separated by 30 cm. What is the force between the two charges?

Answers

Answer:

4.38 × 10^13

Explanation:

plz mark as brainist

4.38 x 10^13 is the answer because If a charge generator builds a negative static charge of -7.00 μC, how many electrons are transferred to it during this process. (e = 1.60 × 10^-19 C)
43.8
1.12 × 10^-18
4.38 × 10^13

Would appreciate brainist!❤️

Number the steps from when a stimulus is received to when the body reacts.

The stimulus is received by sensory receptors.

Motor neurons cause muscles to contract so the body can react to the stimulus.

The brain processes the information through interneurons.

Interneurons transfer response information to motor neurons.

Sensory neurons carry stimulus information to the brain or spinal cord

Answers

Answer:

answer

1,5,3,4,2

Number the steps from when a stimulus is received to when the body reacts.

1---The stimulus is received by sensory receptors.

5--- Motor neurons cause muscles to contract so the body can react to the stimulus.

3----The brain processes the information through interneurons.

4--- Interneurons transfer response information to motor neurons.

2---Sensory neurons carry stimulus information to the brain or spinal cord.

Explanation:

hope this helps!

AYOO Hey plzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

Hold on Ill answer it..When do u need it by

Explanation:

Answer:

the answer is A

Explanation:

the industrial society and its revolution

The graph shows two runners participating in a race.

Which best describes the runners?

Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.
Daniela ran faster than Leonard through the entire race.
Daniela gave Leonard a 5-meter head start and caught up to him at 25 meters.
Daniela ran slower than Leonard, but she went faster at the end.

Answers

Answer:

'Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.'

Explanation:

hope that helps :)

The statement which best describes the runners is: A. Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.

What is a graph?

A graph can be defined as the graphical representation of data (information) such as position and time, on both the horizontal and vertical lines, which are commonly called the x-axis and y-axis respectively.

The types of graph.

In Science, there are different types of graph and these include the following:

Scatter plotBar graphPie chartDot graphLine graph

In conclusion, we can deduce from the position-time graph that Daniela had a 5-meter head start but Leonard caught up to her at 25 meters.

Read more on graphs here: https://brainly.com/question/25875680

ANSWER SOON PLS IM TIMED FIRST DO NOT GIVE ME ANY FILES OR ANY CHEATS FROM WEB PLS ANSWER CLEARLY THANK YOU OH What is the primary source of energy that drove the cycling of matter that formed the Grand Canyon?


the sun
the sun

Earth's hot interior
Earth's hot interior

erosion and weathering

Answers

Answer:

the sun and earths hot interior

erosion and weathering

The pressure of a cylinder with the following dimensions: radius 13.9 cm and height 34 cm; has a pressure of 172.9 kPa. If the pressure is reduced to 1.75 atm, what will be the volume of the gas inside the cylinder?

Answers

Answer:Experience has shown that several properties of a gas can be related to each other under certain conditions. The properties are pressure (P), volume (V), temperature (T, in kelvins), and amount of material expressed in moles (n). What we find is that a sample of gas cannot have any random values for these properties. Instead, only certain values, dictated by some simple mathematical relationships, will occur.

Explanation:

Do not click any links because it’s a virus!! Be safe

Robert uses a force of 22 newtons to move a 100 lb box a distance of 4 meters. How much work has he done?

50 newton-meters
88 newton-meters
400 newton-meters
2,200 newton-meters

Answers

Answer:

The answer is 88 newton-meters

Explanation:

88 Newton’s thank you

Which one is Transverse Wave?
(A). Particles move in the perpendicular direction that the wave travels
(B). Particles move in the same direction as the wave travels


help due tonight- n no mfkn links plsssss

Answers

Answer:a

Explanation:

Answer:

Your answer for this question is A) Particles move in the perpendicular direction that the wave travels

DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE!

What is the kinetic energy of a 4,000 kg elephant that is running at 2 m/s? What is the kinetic energy of the elephant if it running at 4 m/s? How do the two kinetic energies compare with one another?

Answers

At 4 m/s?

How do the two kinetic energies compare to one another? QUADRUPLES !

#3 What is the kinetic energy of a 2,000 kg bus that is moving at 30 m/s?

Potential energy

By definition of kinetic energy,

the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.

Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.

Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and at rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.

Kinetic energy is represented by the following expression:

Ec = ½ mv²

Where Ec is kinetic energy, which is measured in Joules (J), m is mass measured in kilograms (kg), and v is velocity measured in meters over seconds (m/s).

In this case, you know:

m= 4000 kgv1= 2 m/sv2= 4 m/s

Then:

Ec1 = ½ mv1²

Ec1=  ½ 4000 kg× (2 m/s)²

Ec1= 8000 J

and

Ec2 = ½ mv2²

Ec2=  ½ 4000 kg× (4 m/s)²

Ec2= 32000 J

You can see that the kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.

In summary:

the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.

Learn more about kinetic energy and mechanical energy:

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Which sentences in the passage are true?
Georgia is a flood-prone area. Storm cellars and tornado-resistant structures would help mitigate the flooding. Desalinizing water would also be ideal in this situation. Georgia could use more satellites and radars to help with detection. Building dams and levees would help control the floodwaters.

Answers

Answer:

True: Georgia is a flood-prone area. Building dams and levees would help control the floodwaters.

False : Storm cellars and tornado-resistant structures would help mitigate the flooding. Desalinizing water would also be ideal in this situation. Georgia could use more satellites and radars to help with detection.

Explanation:

pls mark me brainliest

The following sentences in the passage are true: Georgia is a flood-prone area. Georgia could use more satellites and radars to help with detection. Building dams and levees would help control the floodwaters.

Why does Georgia face floods more often?

Georgia is located in a region that is prone to severe weather events, including heavy rainfall and flash flooding. The state is also home to many rivers and streams, which can overflow their banks during periods of heavy rain, causing widespread flooding.

Additionally, Georgia has experienced significant population growth and development in recent decades, which has led to increased urbanization and construction in areas that were previously undeveloped or used for agriculture. This urbanization can lead to increased runoff during heavy rain events, which can exacerbate flooding.

Climate change may also be contributing to more frequent flooding in Georgia and other regions. As global temperatures rise, the atmosphere can hold more moisture, leading to more intense rainfall events and an increased risk of flooding.

Overall, floods are a natural and common occurrence in many parts of the world, including Georgia. By taking appropriate measures to prepare for floods, such as implementing effective flood management plans, improving infrastructure, and educating residents on flood risks and safety measures, communities can reduce the impact of flooding on people and property.

Here in the question.

The following sentences in the passage are true:

A. Georgia is a flood-prone area.

D. Georgia could use more satellites and radars to help with detection.

E. Building dams and levees would help control the floodwaters.

Note: Storm cellars and tornado-resistant structures would not help mitigate flooding, as they are designed to protect against tornadoes and severe windstorms, not floods. Desalinizing water is not directly related to flood mitigation, as it is a process of removing salt and other minerals from seawater to make it drinkable, which is more relevant to areas that lack access to fresh water.

Therefore, Georgia is a flood-prone area, and Georgia could use more satellites and radars to help with detection.and Building dams and levees would help control the floodwaters are true.

To learn more about Earth's rotational period click:

https://brainly.com/question/12615486

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If a fossil contains 50% of the amount of carbon that a living animal contains, how many half lives have passed while it decayed? How old is the fossil? (half lives x 5730)

Answers

Answer:

Carbon 14 has a half life of 5730 years? I think this is right hope it helps!

Explanation:

What are air masses, and how do they work?

NEED HELP ASAP!

Answers

Answer:

Need help? I'll give it to you!

Explanation:

Air masses are formed when air stagnates for long periods of time over a uniform surface. The characteristic temperature and moisture of air masses are determined by the surface over which they form. An air mass acquires these attributes through heat and moisture exchanges with the surface.

Also known as air-flow mattresses, alternating pressure mattresses relieve and redistribute pressure through a dynamic lying surface. Alternating pressure sore mattresses are assembled with a row of lateral air cells that constantly alternate. Hope it helps

Earth's subsystems are the geosphere, atmosphere, hydrosphere, and biosphere. Energy and matter are transferred when Earth's subsystems interact.

Describe which of Earth's subsystems are involved when a hurricane passes through an area. Explain how these different subsystems affect one another.

Answers

Answer:

ok

Explanation:

The Earth is made of several subsystems or "spheres" that interact to form a complex and continuously changing whole called the Earth system. Scale

Processes operating in the Earth system take place on spatial scales varying from fractions of millimeters to thousands of kilometers, and on time scales that range from milliseconds to billions of years.

Examples of instantaneous - breathing; rotation of the Earth; earthquake

Examples of long term - making coal; plate tectonics

Cycles

The Earth system is characterized by numerous overlapping cycles in which matter is recycled over and over again. Cycles involve multiple spheres and systems interactions.

Examples of cycles: day and night; rock cycle; seasons

Energy

The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.

Humans and the Earth System

People are part of the Earth system and they impact and are impacted by its materials and processes.

What is the study of sound waves called?

short answer pls

Answers

Answer:

Acoustics

Explanation: It’s the branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.

Answer:

Acoustics

Explanation:

Acoustics is the branch of physics concerned with the study of sound (mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics is an acoustician. The application of acoustics in technology is called acoustical engineering.

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